US1513499A - Shade roller - Google Patents

Description

' Oef. 28

J. GOODMAN ET AL- SHADE ROLLER Filed June 13, 1922 "Huff/cefalea' Patented Oct. 28, 1924.

UNITED Jo'sErHoooDMAN ANI) wiLnrA'M AfsoinERs,

To 'IIrnlvrill CARMEL MANUFACTURING A 'CORPORATION OF CONNECTICUT.

SHADE ROLLER'.

Appi'ication med june' 13,1922.' serial Noi 567,930;

Improvements 'inShade Rollers; "of which` the "following-is "a specificatiomreference being vhad therein"to'th'e` accompanying draw ingsi`- f v f Y This Vinvention relates to shadefrollers,` its principal 4objectbeing"to vvprovide a roller that'will be nois'eless.Y y

Among 'other aims and objects ot' the'in! vention' may be recited the provision rof a device' of" the character mentioned with a view to ,oompa`ctness,` inl whichl the .number of parts are few, the construction simple'rthe costfof production small and eliciency of Operation high. l

The' improvements in the details and arrangement of parts will be apparent from an inspectin ofthel accompanying drawings, in connection with the de'soriptionghereinafterfc'o'ntained and wherein a preferred embodinent of theV inventionv is 'disclosed 'for the of the same?" 'l l A In; 'the' drawings wherein like characters of re,4 erenne j vkindicate v'corresponding parts in the several views';' P

Figure'l shows our', invention Yin side lele-v4 vatibn,' somefparts being""broken away and others infsee'tion; x p Y y Y i y Figure 2 is a sectionalfend view thereof, thepa'rtsv in section being ftalien" generally upon line 2 2l of Figure l; y

Figurej is a yview similar tothat shown in i'gure2, but oneV of' they pawls therein is in'ia different relative position;

Figure 4' is a detailed' end `elevation of the head member; and

Figiire. 5 is a fragmentaryjplan view v'of:l

.one'endlofthe rod and a pawl in engagement Infthe' drawingsflddesignates the roller whichy ispreferably made of sheet metal andv linedwith `felt'fill, or the like, todead'en any noisefj'that'inight result from l'the striking of the partsthere/'aga'i'l'ist;j 'and 12 is a' rod relation thereto.' A

:purpose of 'imparting anunderstanding l substantially so7 tends to move has f a locking face 15 :which is inla vertial plane when the bracket 14 istix'ed in po'si-r tion and a clearingfacegl at an"-angle thereto, are secured to a lfelt Aorlibre disk portethis rod 'atY itsginner end.

upon the The journal'collars 17-17 which 18 sup'-- .o .60 Ro'tatably mounted? upon 'a bushingfZOf rod l2and fheldf against endwise movement in one direction by av-collar'21'' thereon`V 'is the head `mem'ber 19 having''f'afn ".65

recess' or depression 22 the i'nnerfface thereof. This recess or depression 22lha'stwoparallel 4sides being for centering nd supporting .the same in greater number of'pawls may be used if desired.

Lying within the recess 22 are the two pawls 25-425, these being lsubstantially"L- shaped and having a straight bar portion 26 and an inwardly 'turned toothV portion 27, this latter having a straightl 'inneror locking face 28 and an clearing face'29.' .A The open end of the head member `19 is coveredby 'a cap' '30 havinganinwardly turned flange -31 thereon that "projects over `the'flange'32'of the head member 19 and is secured thereto and to lthe roller' lO so -that the saine become a singleL unitary structure@ v A' coil spring enoireles-the rod 12,"

being xed thereto at its inner end andat its outer end` to thehub 34 of the head memberr19. The roller 10l is provided' at v` the end thereof opposite to the head "member 19 with a head member 35, whioh'is covered l 23 and roundedends24a' these# latterupon 'the opposite sides" ofV thev Vrecess of substantially 'the same diaineteijasf the inside of the roller 10 and form meansf70 angular outer or' by a cap 36 secured thereto and rrotatable upon a stud xed in the @bracket 38. To prevent rattling"ofthe' parts at their end, we'have inserted a yspring 39 in the recess' 40 in the head member 35,"whioh bears against the stud?.

The -pawls 25 are mounted vwithin the recess 22 for righ-t line movement paiallelwith eachother and the tooth portionfof the upperv pawl when vthe recess'22 is vertical or "ther'oller is 'rotatedrapidly;A -v

If' the' roller 'is 'at rest 'the tooth' 427/"of 'one by ygravity iii of the pawls 25 is in the notch 13 substantially as shown in Figure 2, the locking tace 28 thereon and the locking face 15 ot the notch 13 being held in contact with each other by the tension ot the coil spring 33.

l/Vhen the roller is rotated when uniieeling the curtain, the clearing tace 16 ot the notch 13 by reason of its engagement with the clearing Jface 29 ot the tooth 27 lifts said pawl out of engagement with the notch and allows the roller to rotate. lit the speed or rotation of the roller is su'ilicient to lreep the pawls in their outermost position, the teeth thereon will pass the notch 13 without engagement therewith, but it the movement is slow, such as is usual when desired to iX the curtain in an adjusted position, the uppermostl of the pawls 25 will drop by gravity into said notch and hold the roller against further rotation.

The straight bar portions 26 or" each of the pawls are ot such length as to overlap the tooth portion of the other pawl sub stantially as shown in Figure 2, thus one pawl reinforces the other and prevents relative lateral movement thereof.

vVith a shade roller constructed sulistantiallv as shown herein and described. the roller can be held in a fixed position each one-half revolution thereoiF and as there are no pivoted pawls or ratchet wheels is common in some types of shade rollers, the same is absolutely noiseless and therefore especially adapted tor use where the slight-- est noise is objectionable, such as in motor vehicles or the like.

Having described our invention, .vhat we claim is:

1. ln a device of the character described; a roller; a head member connected therewith; a bracket; a rod secured in said bracket and held against rotation relatively thereto and having a notch therein, a plurality of pawls having a constant sliding Contact with each other, each oit said pawls having a tooth thereon adav sid notch and hold said roller against rotation in one direction and to be released 'trom said notch by the rotation ot said .roller when moved in the opposite direction, the toothed portion of one ot the pawls bemoved away trom the toothed portion oi" the other of said pawls by centrifugal torce during the rotation of the head member.

Q. In a device ot the character described; a roller; a head member connected therewith; a bracket; a rod secured in said bracket and held against rotation relatively thereto and having a notch therein; a plurality oit' substantially L-shaped pawls having a constant sliding contact with each other, each pawl having a tooth thereon adapted to drop into said notch and hold the roller against rotation in one direction and to be released from said notch by the rotation ted to drop into Leis/ice of said roller when moved in the opposite direction, the toothed portion ot one pawl being moved away from the toothed portion or the other pawl by centrifugal torce during the rotation of the head member.

3. ln a device ot the character described;` a roller.; a head member `connected therewith; a brachetg a rod secured in said bracket and held against rotation relatively thereto, having a notch therein; a plurality of independently movable pawls, actuated by gravit* and centrifugal torce toward and away from each other but retaining constant sliding contact with each other, each pawl holding the other pawl against movement when one ot the pawls is in engagement with said notch..

4. ln a device ot the character described, a roller; a head member connected therewith having a recess 'therein with two sub-i stantially parallel walls; a bracket; a rod secured in said bracket and held against rotation relatively thereto, having a notch therein; a plurality ot pawls movably mounted within said head member antL adapted to drop into said notch and hold said roller against rotation in one direction and to be released from .said notch by the rotation ot said roller when moving in the opposite direction; said pawls being so arranged that a portion ot one otl said pawls is in constant sliding contact with one oi th:x sides of said recess and a portion ot the other ot said pawls is in contact with the opposite wall thereof.

5. ln a device of the character described, a roller; a head member connected there-- with having a recess therein with two substantially parallel walls; a bracket; a rod secured in said bracket and held against rotation relatively thereto, having a notch therein, a plurality of pawls of less width than said recess movably mounted therein and adapted to drop into said notch and hold said roller against rotation in one rection and to be released from said notch by the rotation o1 said roller when movin@ in the opposite direction; said pawls bei so arranged that portion ot one ot said pawls is in constant sliding contact with one ot the sides ot said recess and a portion ot the other ot said pawls is in contact with the opposite wall thereof.

6. ln a device of the character described, a roller; a head member connected therewith having a recess therein with two substantially parallel walls; a bracket; a rod secured in said bracket and held against rotation relatively thereto, having a notch therein; a plurality ot pawls movably mounted within said recess, each ot less width than said recess and held against lateral movement therein bythe other of said pawls with which it is in constant contact and moved outwardly in opposite dillt) -iac

rections from the center of the roller by centrifugal force.

7. In a device of the character described, a roller; a head member connected therewith; a bracket; a rod secured in said bracket and held against rotation relatively thereto, having a notch therein; a plurality of pawls having constant sliding contact with each other movably mounted within said head member in opposite directions by centrifugal force, each of the pawls having a tooth thereon that is adapted to drop into said notch and hold said roller against rotation in one direction and to be released from said notch by the rotation of said roller when moving in the opposite direction, each of said pawls having a substantially straight side portion and an osettooth portion at one end having one locking tace and a clearing face extending therefrom at an angle thereto.

8. In a device of the character described, a roller; a head member connected therewith; a cap covering said head member; a

bracket; a rod secured in said bracket and held against rotation relatively thereto, having a notch therein; a plurality of pawls having constant sliding contact` with and movable relatively to each other by centrifugal force within said head member and adapted to drop into said notch and hold said roller against rotation in one direction and to be released from said notch by the rotation of said roller when moving in the opposite direction, said roller, head member and cap `forming a unitary structure.

9. In a device of the character described, a roller; a head member connected therewith having a recess in one side with two substantially parallel walls and a projection upon the Opposite side having similar parallel sides and two round ends, the distance therebetween being substantially the same as that of the inside diameter of said roller by which it is centered; a cap covering one end of said head member and fixed thereto, said roller, head member and cap forming a single unitary structure.

l0. In a device of the character described, a roller; a head member connected therewith having a recess in one side with two substantially parallel walls and a projection upon the opposite side having similar parallel sides and two round ends, the

distance therebetween being substantially the same as that of the inside diameter of said ro-ller by which it is centered; a cap covering one end ofl said head member and fixed thereto, said roller, head member and cap forming a single unitary structure; a rod secured in said bracket and held against rotation relatively thereto, having a notch thereon; a plurality of pawls mounted within saidy recess movable in opposite directions by centrifugal force and at the same time maintaining a constant sliding contact with each other; and a. spring surrounding said rod having connection at one end therewith and at the other end with said head member.

l1. A curtain vroller comprising rotary and stationary elements; means tending to turn .the rotary element; and a pair of pawls carried by theA rotary element and actuated independently therein by gravity and centrifugal force toward and away from each other, but retaining a. constant sliding contact with each other, said pawls and stationary element being provided with shoulders adapted to co-act to prevent turning of the rotary element in one direction.

l2. A curtain roller comprising rotary and stationary elements; means tending to turn the rotary element; twopawlscarried within a recess in the rotary element that move away from the center of said element by centrifugal forceand at the same time maintaining sliding contact with each other during their entire relative movement, each pawl having a tooth thereon adapted to dro-p into the notch in said roller and hold the same against movement in one direction.

13. A curtain roller comprising rotary and stationary elements, means tending to rotate the rotary element in one direction, and a plurality of separate relatively movable pawls having constant contact with each other carried by the rotary element and provided with shoulders, said stationary element being provided with a shoulder adapted to coact with the shoulder on any of the pawls to prevent turning of the elementin the opposite direction.

In testimony whereof we have hereunto axed our signatures.

JOSEPH GOODMAN. WILLIAM A. sOMERs.

Images